Illuminating door-knob.



nniTEn sTATEs PATENT oEEIoE.

CHARLES A. GREELY, OF OAKLAND, ALIFORNIA.

ILLUMINATING DOOR-KNOB.

Specication of Letters Patent.

Patented Feb. 16, 1915.

To allie/10m t may concern Be it known that CHARLES A. GREELY, a citizen of the linited States, residing at Oakland, in the. county Alameda, State of California, have invented certain new and useful lmprovements in illuminating Doornobs: and l do hereby declare the followig to bea full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to door knobs and has for itsobjeCt the provision of a door knob carrying means whereby light may be thrown upon the escutcheon plate so that the key holes may he readily found 1n the dark. An important ob3ect is the provision of a door knob having an electric lamp dis posed and protected therein and adapted to throw light upon the escutcheon plate.

A further object is the provision of a door knob of this character provided with means readily engageahle by the operators fingers for closing: the. circuit to energize the lamp.

f'itillV another object is the provision of a door kimb ol' this character so constructed that it may be read., taken apart to afford easy to its interior in oase of any necessity for repairing the mechanism contained therein.

Still another object is the provision of a door knob of this character which will be simple and inexpensive. in manufacture, eiicient andl positive in operation and a ,genv eral improvement the art With these and other objects and advantages in view, the invention consists in the novel construction. arrangement and combination of parte as will be hereinafter more fully described and illustrated in the :mcompanyin drawings in whichlligure i s an edge view of a door having my inmrowd door knol applied thereto, Fig. 2 a vertical lon; jitu flinal sectional View through the knob and door, Fig. 3 is a sectional View on the line 3-3 of Fig. 2. and Fig. lis a lace view of the knob.

Referringr more particularly to the drawings. the numeral 5 designates a door prospring 24.

My improved door knob is primarily for the purpose of rotating the latch actuating bar 1l and comprises a shell formed in tWo sections 12 and 13, the section 12 being pro vided with a laterally extending sleeve 14. secured uponthe bar 11 by any suitable means, as for instance a screw 15. The section 13 conforms in contour to the section 12 and is removably secured thereto as by means of screws 16 which pass through the section 13 and engage'lugs 17 formed on or secured to the section 12 adjacent itsopen end.

Below the sleeve 14 the section 12 is provided with an opening 18 adjacent Which is secured on the interior of the section 12, a bracketl) which comprises an angular arm 20 secured to and insulated from. the section 12 as by a hushed screw 21, and carrying at its free end a threaded socket vshell 22 which is open at both ends and which is adapted to receiveI an electric lamp 23, the

bulb of which extends Within the opening 18. I'lhe bracket- 19 a nd socket shell 22 are formed of metal. A leaf spring 21is secured upon and insulated from the inner side of the section 12 at a point above the sleeve 14 as by a hushed screw 25, and isb-entto extend adjacent the section 13 and is then rebent to form a portion 26 adapted to be contacted with the contact button 27 on the cn'd of the lamp 23.

At a point below the plate 7 the door 5 is provided with a vrecess 28 in which is disposed preferably a dry battery 29 which has its terminals connected with the screwl and the screw 21 by wires S0 and -31 respectively, il plate 32 is hlingedly scoured upon the lower end of the plate 7 for closing the recess 28.

ln order to close the circuit to energize the lamp so that light will be projected thereby upon the escutcheon plate S I provide a push button 33 which extends through an opening formed centrally throughlthe section 13 and which abuts against the leaf The resilience of the spring 2l normallypresses the push button 33 outwardly with its enlarged portion 34 bearin;r against the: sect-ion 13.

f'hen it is desired to throw light uponl the key holes it is, merely necessary that the operator press inwardly upon the push button 32E whereupon the end 26 of the spring will contactwith the button 27 on the lamp 23 whereupon current will How from the battery 29 through the Wire 30,.

that it is a very simple matter to illuminate the escutcheon plate to facilitate the inser- Lion of the key within. the key holes Without thenece'ssity for any exasperating fumbling in the'dark.

It will be understood that the provision of the lamp and itsv associated parte Within the door knob does not in anyway interfere with the retraction of the latch bolt Furthermore my device presents a neat and attractive appearance as the Wires passV through the plate 8 and through suitable grooves to the battery.

, It will be readily understood that re serve the' right to make such changes as Willnot depart from the spirit of the invention and will therefore be included Within the scope of the subjoined claim.

Having thmy described my invention, I claim:

In combination with a door lock havingv a key hole therein, a hollow door knob provided with an aperture, an electric iarnp disposed adjacent said aperture, an electric battery disposed in the door,a bracket secured Within said door knob, a socket on sani bracket receiving said lamp, said bracket being connected with one terminal of Said battery, a leaf spring .secured within said door knob and connected Withtihfe other terminal of said battery, said leaf spring extending adjacent the front wall of said knob and being bent to 'forni a Contact member and a push button extending centrally through the front wall of said knob and engaging said spring whereby the contact portion of said spring may contact with the end oi said lamp.

In testimony whereof, I affix my igua- .ture, in the pre-sectie of two witnesses.

CHARLES A. GREELY.

VVitx u@ses ALBERT L. f'JENsoN, Enrn J. GREELY. 

